参数资料
型号: M37545G4-XXXGP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP32
封装: 7 X 7 MM, 0.80 MM PITCH, PLASTIC, LQFP-32
文件页数: 31/65页
文件大小: 782K
代理商: M37545G4-XXXGP
Rev.1.07
Mar 19, 2009
Page 35 of 60
REJ03B0140-0107
7545 Group
Fig. 34 Timing diagram at reset
Fig. 35 Block diagram of watchdog timer and reset circuit
f(XIN)
f(XIN) 16384 pulses
RESET
Internal reset signal
CPU clock
φ
?
?FFFCFFFD
?
ADL
ADH
?
ADH, ADL
SYNC
Data
Address
Write "FF16" to
the watchdog timer
control register
XIN
Watchdog timer H count source selection bit
"0"
"1"
Watchdog timer H(8)
Reset circuit
Watchdog timer L(8)
Voltage drop detection circuit
Power-on reset circuit
Internal reset
1/16
STP instruction function selection bit
STP instruction
RESET
Write "FF16" to
the watchdog timer
control register
Count start
(Watchdog timer disable bit
(bit 0 of FSROM)
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